solve x^2-5x-4=0?

1 ⤊

2007-12-23 06:49:40 · 5 answers · asked by blue_eyed_woman_23 3 in Science & Mathematics ➔ Mathematics

you should do your own homeowrk :P
all the best

2007-12-27 05:16:59 · answer #1 · answered by kamal d 3 · 0⤊ 1⤋

it is impossible unless you use the quadratic formula because the sign before the 4 should be positive ;)

2007-12-23 06:55:07 · answer #2 · answered by Gracieღ™ 3 · 0⤊ 0⤋

x = [ 5 ± √ (25 + 16) ] / 2
x = [ 5 ± √ (41) ] / 2

2007-12-23 07:03:51 · answer #3 · answered by Como 7 · 1⤊ 0⤋

x² - 5x -4= 0

x' = 5,70156

x" = -0,70156

2007-12-23 11:32:56 · answer #4 · answered by josep d 7 · 0⤊ 0⤋

x=5.70156
x= - .701562
use the quadratic formula

2007-12-23 06:57:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋